1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
5 //
6 // This Source Code Form is subject to the terms of the Mozilla
7 // Public License v. 2.0. If a copy of the MPL was not distributed
8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9
10 #include "main.h"
11
12 template<typename From, typename To>
check_is_convertible(const From &,const To &)13 bool check_is_convertible(const From&, const To&)
14 {
15 return internal::is_convertible<From,To>::value;
16 }
17
test_meta()18 void test_meta()
19 {
20 VERIFY((internal::conditional<(3<4),internal::true_type, internal::false_type>::type::value));
21 VERIFY(( internal::is_same<float,float>::value));
22 VERIFY((!internal::is_same<float,double>::value));
23 VERIFY((!internal::is_same<float,float&>::value));
24 VERIFY((!internal::is_same<float,const float&>::value));
25
26 VERIFY(( internal::is_same<float,internal::remove_all<const float&>::type >::value));
27 VERIFY(( internal::is_same<float,internal::remove_all<const float*>::type >::value));
28 VERIFY(( internal::is_same<float,internal::remove_all<const float*&>::type >::value));
29 VERIFY(( internal::is_same<float,internal::remove_all<float**>::type >::value));
30 VERIFY(( internal::is_same<float,internal::remove_all<float**&>::type >::value));
31 VERIFY(( internal::is_same<float,internal::remove_all<float* const *&>::type >::value));
32 VERIFY(( internal::is_same<float,internal::remove_all<float* const>::type >::value));
33
34 // test add_const
35 VERIFY(( internal::is_same< internal::add_const<float>::type, const float >::value));
36 VERIFY(( internal::is_same< internal::add_const<float*>::type, float* const>::value));
37 VERIFY(( internal::is_same< internal::add_const<float const*>::type, float const* const>::value));
38 VERIFY(( internal::is_same< internal::add_const<float&>::type, float& >::value));
39
40 // test remove_const
41 VERIFY(( internal::is_same< internal::remove_const<float const* const>::type, float const* >::value));
42 VERIFY(( internal::is_same< internal::remove_const<float const*>::type, float const* >::value));
43 VERIFY(( internal::is_same< internal::remove_const<float* const>::type, float* >::value));
44
45 // test add_const_on_value_type
46 VERIFY(( internal::is_same< internal::add_const_on_value_type<float&>::type, float const& >::value));
47 VERIFY(( internal::is_same< internal::add_const_on_value_type<float*>::type, float const* >::value));
48
49 VERIFY(( internal::is_same< internal::add_const_on_value_type<float>::type, const float >::value));
50 VERIFY(( internal::is_same< internal::add_const_on_value_type<const float>::type, const float >::value));
51
52 VERIFY(( internal::is_same< internal::add_const_on_value_type<const float* const>::type, const float* const>::value));
53 VERIFY(( internal::is_same< internal::add_const_on_value_type<float* const>::type, const float* const>::value));
54
55 VERIFY(( internal::is_same<float,internal::remove_reference<float&>::type >::value));
56 VERIFY(( internal::is_same<const float,internal::remove_reference<const float&>::type >::value));
57 VERIFY(( internal::is_same<float,internal::remove_pointer<float*>::type >::value));
58 VERIFY(( internal::is_same<const float,internal::remove_pointer<const float*>::type >::value));
59 VERIFY(( internal::is_same<float,internal::remove_pointer<float* const >::type >::value));
60
61 VERIFY(( internal::is_convertible<float,double>::value ));
62 VERIFY(( internal::is_convertible<int,double>::value ));
63 VERIFY(( internal::is_convertible<double,int>::value ));
64 VERIFY((!internal::is_convertible<std::complex<double>,double>::value ));
65 VERIFY(( internal::is_convertible<Array33f,Matrix3f>::value ));
66 // VERIFY((!internal::is_convertible<Matrix3f,Matrix3d>::value )); //does not work because the conversion is prevented by a static assertion
67 VERIFY((!internal::is_convertible<Array33f,int>::value ));
68 VERIFY((!internal::is_convertible<MatrixXf,float>::value ));
69 {
70 float f;
71 MatrixXf A, B;
72 VectorXf a, b;
73 VERIFY(( check_is_convertible(a.dot(b), f) ));
74 VERIFY(( check_is_convertible(a.transpose()*b, f) ));
75 VERIFY((!check_is_convertible(A*B, f) ));
76 VERIFY(( check_is_convertible(A*B, A) ));
77 }
78
79 VERIFY(internal::meta_sqrt<1>::ret == 1);
80 #define VERIFY_META_SQRT(X) VERIFY(internal::meta_sqrt<X>::ret == int(std::sqrt(double(X))))
81 VERIFY_META_SQRT(2);
82 VERIFY_META_SQRT(3);
83 VERIFY_META_SQRT(4);
84 VERIFY_META_SQRT(5);
85 VERIFY_META_SQRT(6);
86 VERIFY_META_SQRT(8);
87 VERIFY_META_SQRT(9);
88 VERIFY_META_SQRT(15);
89 VERIFY_META_SQRT(16);
90 VERIFY_META_SQRT(17);
91 VERIFY_META_SQRT(255);
92 VERIFY_META_SQRT(256);
93 VERIFY_META_SQRT(257);
94 VERIFY_META_SQRT(1023);
95 VERIFY_META_SQRT(1024);
96 VERIFY_META_SQRT(1025);
97 }
98